Results 11 to 20 of about 170,507 (251)
Primary Nasopharngeal Yolk Sac Tumor: A Case Report [PDF]
Yolk sac tumour also known as primitive endodermal tumour is the most common malignant germ cell tumour (GCT) in the paediatric age group. Most common sites of involvement are ovaries and testes, but rarely can occur in the extragonadal sites.
Dhanalakshmi Arumugam+4 more
doaj +1 more source
Background Yolk sac tumor (YST) is a germ cell tumor. It is primarily located in the gonads but can also occur extragonadally (extragonadal yolk sac tumor - EGYST), most commonly in the pelvis, retroperitoneum or mediastinum.
Vladimír Šámal+4 more
doaj +1 more source
We present a case of primary yolk sac tumor of the endometrium. This rare tumor occurred in a 43-year-old woman with a pure primary yolk sac tumor. The tumor resembled yolk sac tumor morphology of the ovary.
Huijuan Ge, Rui Bi
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Abstract Objectives To investigate the utility of a novel serum miRNA biomarker panel to distinguish teratoma from nonmalignant necrotic/fibrotic tissues or nonviable tumours in patients with NSGCT undergoing post‐chemotherapy consolidation surgery.
Joseph A. Moore+12 more
wiley +1 more source
Morphology of the avian yolk sac
The avian yolk sac is a multifunctional extraembryonic organ that serves not only as a site of nutrient (yolk) absorption, but also for early hemopoiesis, and formation of blood vessels.
J. M. Starck
semanticscholar +1 more source
KIT Is Required for Fetal Liver Hematopoiesis
In the mouse embryo, endothelial cell (EC) progenitors almost concomitantly give rise to the first blood vessels in the yolk sac and the large vessels of the embryo proper.
Alessandro Fantin+6 more
doaj +1 more source
Here, we report the first adult case of pancreatic yolk sac tumor with ectopic adrenocorticotropic hormone (ACTH) syndrome. The patient was a 27-year-old woman presenting with abdominal distension, Cushingoid features, and hyperpigmentation.
Johnny Yau Cheung Chang+12 more
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K-means segmentation based-on lab color space for embryo detection in incubated egg [PDF]
The quality of the hatching process influences the success of the hatch rate besides the inherent egg factors. Eliminating infertile or dead eggs and monitoring embryonic growth are very important factors in efficient hatchery practices. This process aims to sort eggs that only have embryos to remain in the incubator until the end of the hatching ...
arxiv +1 more source
Two‐dimensional nanomaterials, a new class of sheet‐like nanomaterials, play a critical role in cathode for lithium‐sulfur batteries owing to their tremendous physical and electrochemical properties. In this review, the state‐of‐the‐art progress in two‐dimensional nanomaterials‐based cathodes for lithium‐sulfur batteries is summarized from different ...
Hongyuan Xu+10 more
wiley +1 more source
Ovarian yolk sac tumor in postmenopausal females
Rationale: Ovarian yolk sac tumors (YSTs) are the second most common histologic type of ovarian germ cell tumors. Most patients are adolescent and young women, while cases in postmenopausal women were rarely reported.
Yao Wang+6 more
semanticscholar +1 more source